Steam-turbine engine.



PATENTED JULY 3, 1906.

A. H. SMITH.

STEAM TURBINE ENG TE.

APPLICATION FILED FBB.V5, ..906.

, Even/ib' ,L

*ANDREW H.sM1 TH, or NEW YORK, N.V Y.

i .Specineation of Letters Patent.

Patented July a, 190e.

Anuman meare'brum 5.1906. serial No. 29am.l

Tc all whom-t *1n/'ttyconcern: n

Be it known that I, .ANDREW vHu SMITH, a

citizen of theI United States, and aV resident of the borough of'Manhattan, inv the cityA and State of New York, have invented a new and useful Improvement in Steam-Turbine Engines, of which the following is a specifica# tion.

The object of my invention is to provide certain improvements in steam-turbine engines whereby the efliciency: of the engine is increased b increasing the force of impact of the steam by the introduction of a suitable powder in to the steam justbefore it' is rought into engagementV with the vpiston vanes or win s.`

A practica embodiment of my invention is regl esented in the accompanying drawing, whicl represents so much of a steam-turbine engine as will give a clear understanding of my invention, the parts being shown partially in side elevation and partially in section.

The cylinder of the en ine is denoted by 1,

the piston-by 2, and t e piston vanes or wings by 3. The ex andin steam-nozzle is denoted by 4, throng whic steam is forced upon the vanes or wings 'from any suitable source of su ply. l

The pow er-nozzle v5 is located within the steam-nozzle 4, to which powder-nozzle a feed-pi e 6 leads from a powderreservoir 7 of the dpesired shape and size. A powder-supply pipe 8 is provided for the reservoir 7, and a Supp mg an pressure medium is also provided for the said reservoir 7. The pipes 6, 8, and 9' are provided with cocks 10, 11, and 12, re-

In operation as the steam is passed through the expanding nozzle 4 into engagement with the vanes or wings 3 ofthe piston 2 the owder-which is preferably powdered grap te, for instance-1s introduced into the -J et of steam through the nozzle 5 under the desired pressure just before nthe impact of the jet of steam upon the vanes or wings of the piston.

The wegliit of the jet willthus be increasedv and in t s way will add to 'the momentum and at the same time make the jet eective for a greater distance from the point of impact t an has heretofore been ossiblewith a ]et of steam alone. This pow ered graphite ma be heated to the proper temperature an Aplaced under the re ulred pressureby 'any suitable meanssuc for lnstance, as

dy-pipe 9 for the admission of the heat- Aervoir 7- throug the ipe 9 fromlany suitable sourc'e.l (Not'shown erein.) After the powdered lgraphite hasbeen used in [connection with the turbine it may again be used by introducing the. same into' the reservoir 7 through the pipe 8. It willbe 'seen that the gra lnte will readily separate from the steam an ma bev used over and over again, as practica ly none of the powder is lost in the operation of drivin 'the turbine. This powder may be em loyed ry or mixed with water or other fluidp to an desired consistency and may be introduce intothe expanding nozzle 4 under any desired pressure.

B y loading the jet Ofsteam with the graphite orother powder a relatively slow movinCr medium is provided having a greater and more persistent momentum than the steam alone, and thusl .causing a heavier 'though slower impact on the piston vanes or wings.

'It will also be seen that the gra hite will re-jl ceive and, retain a high degree o heat, which will prevent the steam. What I claim -israpid condensation of the 1. In a-steam-turbine engine, a steam-nozzle and means for introducmg a powder into the steam as it is passing through the -said nozzle. 4

2. In a steam-turbine en ine, a steam-noz-7 zle and means for. intro ucing powdered graphite 4into the steam as it is passing through the said nozzle. 3. n a steam-turbine engine, a steam-nozzle and means for introducing a powder at a high temperature into the steam as it is passing through the said nozzle.

4. In a steam-turbine en ine, a steam-nozzle and means for intro ucing powdered graphite at a high temperature into the slteam as it is passing through the said nozz e.

5. In a steam-turbine engine, a steam-nozzle and means for introducing a powder under pressure into the steam as it is passing throu h the said nozzle. p 6. n a steam-turbine en ine, a steam-noz zle and means for Aintro ucing powdered graphite under pressure into the steam as it is passing through the said nozzle.

7. In a steam-turbine engine, a steam-nozzle and means for introducmg a powder at a high temperature and under pressure into the steam as it is passing through the said nozzle-- roo IIO

8. In a steamlturbine engine, a steam-nozzle and means for introducing powdered graphite at a high temperature and under pressure into the steam as it is passing through the said nozzle. i.

9. In a steam-turbine engine, an expanding steam-nozzle and means Jfor introducing a powder into the steam as it is expanding in said nozzle.

10. In a steam-turbine engine, an expanding steammozzle and means for introducing powdered graphite into the steam as it isexpandingA in said nozzle.

11. In a steam-turbine engine, an expanding steam-nozzle and means for introducing a powder at' a high temperaturel into the steam as itis expanding in said nozzle.

12. In a steam-turbine engine, an expanding steainmozzle and means .tor introducing powdered graphite at a high temperature into the steam as it is expanding in said nozzle.

13. In a steam-turbine engine, an expanding steam-nozzle and means for introducing a powder under pressure into the steam as Vit is expanding in said nozzle.

14. In a steam-turbine engine, an ex panding steam-nozzle and means Jfor introc ucing powdered graphite under pressure into the steam as it is expanding in said nozzle.

15. In a steam-turbine engine, an ex Danding steam-nozzle and means for intro ucing powder at a high temperature and under pressure into the steam as it is expanding 1n said nozzle. y f

16. In a steam-turbine engine, an ex 4anding steam-nozzle and means for intro t ucing powdered graphite at a high temperature and under pressure into the steam as it isexf panding in the said nozzle.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 2d day of Februn ary, 1906.

ANDREVVH. SMITH Witnesses:

FREDK. HAYNES, F. GEORGENBARRY. 

